MBR on USB drive does not contain partition table?

[chcw]

I try to analyze the first 512 bytes on a USB drive(MBR) and find there are no partition table, what I see are some texts like “Remove disks or other media”. Not following the structure in http://en.wikipedia.org/wiki/Master_boo ... rtitioning. Where can I find the layout for MBR on USB drive?

Thanks

[fzabkar]

It sounds like the flash drive may be set up as a "super floppy". In other words, sector 0 may be a boot sector rather than an MBR.

Could we see the contents?